#include<stdio.h>

int main() {
    int a;
    while (scanf_s("%d", &a) != EOF) {
        int i, j = 0;
        for (i = 0;i < a;i++)
        {
            for (j = 0;j < a;j++)
            {
                if (i == j||(i+j)==a-1)
                    printf("*");
                else
                    printf(" ");
            }
            printf("\n");
        }
    }
    return 0;
}